<template>
  <div>
    <!-- 面包屑导航区 -->
    <!-- <el-breadcrumb separator="/"> -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <!-- 一行占24格，span是一列的占位大小，gutter是列与列之间的空隙 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <!-- table 用:data绑定数据源 border属性直接显示表格边框 stripe直接隔行变色 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>// 添加索引链
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- {{scope.row}} 显示row的所有数据
            有作用域插槽时，prop就不起作用了，可以删除-->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <!-- 组件中的作用域插槽在封装时，会指定行数据的 -->
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteManager(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                @click="setRole(scope.row)"
                type="warning"
                icon="el-icon-setting"
                size="mini"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1,2,5,10]"
        :page-size="queryInfo.pagesize"
        layout="total,sizes,prev,pager,next,jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClose">
      <!-- 表单区域 -->
      <el-form :model="addUser" :rules="addUserRules" ref="addUserRef" label-width="70px">
        <!-- 用户名 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addUser.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码" prop="password">
          <el-input type="password" v-model="addUser.password"></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addUser.email"></el-input>
        </el-form-item>
        <!-- 手机 -->
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addUser.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addManager">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户信息的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClose">
      <!-- 表单区域 -->
      <el-form :model="editUser" :rules="editUserRules" ref="editUserRef" label-width="70px">
        <!-- 用户名 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editUser.username" disabled></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editUser.email"></el-input>
        </el-form-item>
        <!-- 手机 -->
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editUser.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editManager">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前角色：{{userInfo.role_name}}</p>
        <!-- <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option :key="item.id" v-for="item in rolesList" :label="item.roleName" :value="item.id"></el-option>
          </el-select>
        </p>-->
        <div>
          <span>分配角色：</span>&nbsp;&nbsp;
          <el-option
            :key="item.id"
            v-for="item in rolesList"
            :label="item.roleName"
            :value="item.id"
          ></el-option>
        </div>
      </div>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import { async } from "q";
export default {
  data() {
    // 定义几个函数内的成员
    // 验证邮箱规则 emailRule就是一个变量 且 该变量就是一个函数，三个参数为形参
    // cb就是回调函数的形参，声明的emailRule(XX,XX,XX)由element-ui中的form组件自己调用，把值传给表单验证对象的规则内
    var emailRule = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        return cb(); // 合法的邮箱
      }
      cb(new Error("请输入合法的邮箱"));
    };
    // 验证手机规则
    var mobileRule = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号"));
    };

    return {
      // 获取用户列表的参数
      queryInfo: {
        query: "", // 该字段是用来做查询功能的
        pagenum: 1, // 当前页数
        pagesize: 2
      },
      userList: [],
      rolesList: [],
      // 已选中的角色id值
      selectedRoleId: "",
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 添加用户表单数据
      addUser: {
        username: "",
        password: "",
        email: "",
        mobile: ""
      },
      editUser: {
        id: "",
        username: "",
        email: "",
        mobile: ""
      },
      userInfo: {},
      // 添加表单的验证规则对象
      addUserRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          { min: 2, max: 10, message: "用户名长度在2~10之间", trigger: "blur" }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, max: 15, message: "用户名长度在6~15之间", trigger: "blur" }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: emailRule, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机", trigger: "blur" },
          { validator: mobileRule, trigger: "blur" }
        ]
      },
      editUserRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: emailRule, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机", trigger: "blur" },
          { validator: mobileRule, trigger: "blur" }
        ]
      }
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      // get(请求地址，get参数) 获取的参数用params表示
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo
      });
      // console.log(res);
      if (res.meta.status != 200)
        return this.$message.error("获取用户列表失败");
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    // 监听pagesie改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 监听页码值的改变事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听switch开关状态的改变
    async userStateChanged(info) {
      const { data: res } = await this.$http.put(
        `users/${info.id}/state/${info.mg_state}`
      );
      if (res.meta.status != 200) {
        info.mg_state = !info.mg_state;
        return this.$message.error("更新用户状态失败");
      }
      this.$message.success("更新用户状态成功");
    },
    // 监听添加用户对话框的关闭事件
    addDialogClose() {
      this.$refs.addUserRef.resetFields();
    },
    // 监听修改用户对话框的关闭事件
    editDialogClose() {
      this.$refs.editUserRef.resetFields();
    },
    // 点击按钮，添加新用户，进行表单的预校验
    addManager() {
      this.$refs.addUserRef.validate(async valid => {
        // console.log(valid);
        if (!valid) return;
        // 发起添加用户的请求
        const { data: res } = await this.$http.post("users", this.addUser);
        if (res.meta.status != 201) return this.$message.error("添加失败");
        this.$message.success("添加成功");
        // 关闭窗口
        this.addDialogVisible = false;
        // 重新获取数据
        this.getUserList();
      });
    },
    // 修改用户信息并提交
    editManager() {
      this.$refs.editUserRef.validate(async valid => {
        if (!valid) return;
        this.$http
          .put(`users/${this.editUser.id}`, {
            email: this.editUser.email,
            mobile: this.editUser.mobile
          })
          .then(res => {
            // console.log(res.data.data);
            if (res.data.meta.status != 200)
              return this.$message.error("修改失败");
            this.$message.success("修改成功");
            this.editDialogVisible = false;
            this.getUserList();
          });
      });
    },
    // editManager(){
    //   this.$refs.editUserRef.validate(async valid=>{
    //     if(!valid) return
    //     // 发起修改用户信息的数据请求
    //     const {data:res}=await this.$http.put('users/'+this.editUser.id, {
    //       email: this.editUser.email,
    //       mobile: this.editUser.mobile
    //     })
    //     if(res.meta.status!=200) return this.$message.error("修改失败");
    //     // 关闭对话框
    //     this.editDialogVisible=false
    //     // 刷新数据列表
    //     this.getUserList()
    //     // 提示修改成功
    //     this.$message.success("修改成功");
    //   })
    // },
    // 展示编辑用户的对话框
    // async showEditDialog(id){
    //   // console.log(id);
    //   const {data:res}=await this.$http.get('users/'+id)
    //   if(res.meta.status!=200) return this.$message.error('查询用户信息失败')
    //   this.editUser=res.data
    //   this.editDialogVisible=true
    // },
    showEditDialog(userInfo) {
      this.editDialogVisible = true;
      this.editUser.id = userInfo.id;
      this.editUser.username = userInfo.username;
      this.editUser.email = userInfo.email;
      this.editUser.mobile = userInfo.mobile;
    },
    async deleteManager(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户，是否继续？",
        "提示",
        {
          confirmButtomText: "确定",
          cancelButtomText: "取消",
          type: "warning"
        }
      )
        // console.log(confirmResult);
        // 如果用户确认删除，返回字符串confirm
        // 如果用户取消删除，返回字符串cancel
        .catch(err => err);
      if (confirmResult == "cancel") return this.$message.info("已取消删除");
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status != 200) {
        return this.$message.error("删除失败");
      }
      this.$message.success("删除成功");
      this.getUserList();
    },
    // 展示分配角色对话框
    async setRole(userInfo) {
      // console.log(userInfo);
      this.userInfo = userInfo;
      this.setRoleDialogVisible = true;
      // 在展示对话框之前，获取所有角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status != 200) {
        return this.$message.error("获取角色列表失败");
      }
      this.rolesList = res.data;
    },
    // 点击按钮，分配角色
    async setRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色");
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectedRoleId }
      );
      if (res.meta.status != 200) {
        return this.$message, error("更新角色失败");
      }
      this.$message.success("更新角色成功");
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    //
    setRoleDialogClosed() {
      this.selectedRoleId = "";
      this.userInfo = "";
    }
  }
};
</script>

<style lang="less" scoped>
</style>